Cooked sweet corn increases levels of ferulic acid, which has anti-cancer properties. In Europe, China, Korea, Japan and India, they are often used as a pizza topping, or in salads.Corn on the cob is a sweet corn cob that has been boiled, steamed, or grilled whole; the kernels are then eaten directly off the cob or cut off. Creamed corn is sweet corn served in a milk or cream sauce. Sweet corn can also be eaten as baby corn.